Quick FYI for folks looking for a learning opportunity - if anyone is looking at this as a professional learning experience, this would be far, far too confusing and has entirely too much info. If this were a complex banking system, for example, this would be broken down into 3 or 4 different diagrams, with a dedicated diagram for each of the key systems as well, and info like IP wouldn't be included. (Just had to re-do a bunch of diagrams for one of the largest banks in the world, because they had grown to be incredibly complex like this.)

For a homelab though, I love it. I especially like the very unusual color scheme because all the colors complement each other very well. OP, you have a good eye for color.